Home / 261,199,406.56-360,444,373.66-142,122,488.65

Finding the Fourth Proportional to 261,199,406.56, 360,444,373.66 and 142,122,488.65

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Solution

The fourth proportional to 261,199,406.56, 360,444,373.66 and 142,122,488.65 is: 196,123,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,199,406.56 : 360,444,373.66 = 142,122,488.65 : x
  2. Step 2: Convert to fraction form
    261,199,406.56/360,444,373.66 = 142,122,488.65/x
  3. Step 3: Cross multiply
    261,199,406.56x = 360,444,373.66 × 142,122,488.65
  4. Step 4: Simplify right side
    261,199,406.56x = 51,227,251,405,139,888
  5. Step 5: Solve for x
    x = 51,227,251,405,139,888/261,199,406.56
  6. Step 6: Final answer
    x = 196,123,153.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.